[BUG] Cowork crashes after 11 seconds on ARM64 Windows (Snapdragon X Elite) - Error 3221225477

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Body of the report:

System Information
• Desktop app version: 1.7196.0
• Operating system: Windows 11 Pro
• Processor: Dell XPS with Snapdragon X Elite ARM64
Exact Error Message
• Error code: 3221225477
• Error text: "write EOF"
• Note that crash occurs in Claude Code child process
Steps to Reproduce
• Start any Cowork session
• Crash occurs consistently at approximately 11 seconds
What You've Already Tried
• Full reinstall
• Verified Hyper-V and virtualization settings
• Confirmed on latest version

What Should Happen?

Claude Cowork should work. I can't get past setup-cowork

Error Messages/Logs

Steps to Reproduce

I can't get through setting up cowork via /setup-cowork because it crashes and gives me this error

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Desktop app version: 1.7196.0

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_